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@Mitbieten @anni @fitta CHARLES A. SCHAEFER, OF CHICAGO, ILLINOIS,ASSIGNOR TO HIMSELF, FRITZ FRILL'- i MAN, WILLIAM WOLFF, AND .IOHNSCHACHTSCHOBER, OF THE SAME PLACE.

Letters Patent No. 64,911, dated May Q1, 1867. n

IMPBOVBD SASH-SUPPORTER.

tlge tlgthule narrar tu in time ttttm man mit marking gaat tf tlg samt.

TO ALL WHOM THIS MAY CONCERN: f

Be it known that I, CHARLES A. SCHAEFER, of Chicago, in the county ofCook, and State of Illinois, have i" invented e. Spring andFriction-Roller for Regulating Sash; and I do hereby declare that thefollowing is afull, clear, and exact description of the construction andoperation of the same, reference being had to the accompanying drawings,and lettersiof reference marked thereon, making a part of thisspecification, in which- Figure 1 is a section of my invention,represented as, attached vto the windoW-jamb. Figure 2 is a perspectiverepresentation of the same, detached from the window. The object oi myinvention is to provide means for holding loose sash in window-frames insuch a manner as to prevent a lateral motion which frequently rendersthe common sash-spring inoperative, and otherwise pro- I duces adisagreeable rattling noise; and its nature consists in the use of acylindrical screw turned intothe i jamb-casing, and having fitted intoits cavity the shank of a pulley-fork operated by a spiral spring. Bythis arrangement a convenient device is provided for holding sash inposition to be easily run up and down in the frame, and also press thesash against that side to `which the lock is put on.

In order to give a cori-.ect understanding of the invention I havevmarked corresponding parts with the same letter, and will give adetailedV description.

A represents the cylinder, having the screw-thread Zi, in order that itmay be turned into the jamb-casing m such a distance as will allow theroller ql to press against sash n, having more or less lateral motion,asrthe case may be. C shows'the shank of the pulley-fork adjusted in thecylinder A, and held by pin f, so as not to get out of place when thesash n is removed, and yet have a longitudinal motion by means of thepressure of the sash in one direction and the force of the coilspring 1in another. The roller d is fitted to revolve between forks e,

Operation.

A hole, of suitable size, must be made in tlicjamb-casing; after whichthe cylinder A can be turned in, by means of a common wrench, to such adepth as will allow the full force of the spring 1 topress the roller dagainst sash 1t and permit the shank c to have a backward longitudinalmotion for overcoming the inequality of the width lof sash. This can beeasily done by turning the cylinder A in or out as the natureof the casemay require. It will be seen, from thisdeseription, that provision ismade for adjusting roller d by means of screwcylinder A, not heretoforeused, and prevent too great a longitudinal motion of shank C.

Having thus fully described my device, what I claim, and desire tosecure by Letters Patent, is

The combination of the screw-cylinder A, shank C, spring' I, and fork e,with the roller d, substantially as and for the purpose set forth.

' CHAS. A. SCI-IAEFER.

AWitnesses:

Gno. L. CHANN, A. HAYWARD.

